Improvement in lasting-machines



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O. W. GLIDDEN. Lasting-lvlaolline. No. 211,506. Patented Jan, 21, 1879.

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0. W. GLIDDEN. Lasting-Machine;

Patented Jan; 21,1879.

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NFETERS, PHOTO-LITHOGNAPNER. wASmNGToN. O.

UNITED STATES PATENT OEEIoE.

CHARLES W. GLIDDEN, OF LYNN, MASSACHUSETTS.

IMPROVEMENT IN LASTlNG-MACHINES.

Specification forming part of Letters Patent No. 211,506, dated January21, 1879 application filed April 30, 1877.

To all whom it may concern:

Be it known that I, CHARLES W. GLIDDEN, of Lynn, in the county of Essexand State of -Massachusetts, have invented an Improveper and inner soleof a shoe previously lasted,

andthen removes thelast and shoe. The upper is held stationary bysuitable dogs or upper-holding devices adapted to grasp its edge, andthen the last and upper are pressed together until the upper is made tofit the last snugly, and then the jaws or lasting devices move towardthe last and push or crowd the upper over the inner sole andlast-bottom, while the upper is held by the upper-holding devices. WVhenthe strain upon the upper is suflicient to lay it snugly in contact withthe last, the dogs are made to automatically release it. The inner soleis shown as adapted to be placed in position upon the last by adjustablepins, which enter holes in the inner sole, and also in the bottom of thelast.

Figure 1 represents, in side elevation, partof alasting-machineconstructed in accordance with my invention, and Fig. 2 represents thepart broken -away from Fig. 1. Fig. 3 represents a detail of thewalking-beam to operate the sole-plate, and the pressers or downholds toforce the last downward at its fore and rear part, or move thelast-bottom and side lasting devices vertically with relation to eachother during the time that the upper held by the holding devices isbeing drawn or fitted to the last; Fig. 4, a view of one form of plateand upper-holding devices to hold the upper at its edges; Fig. 5, alongitudinal section through the last and heel and toe lasting devicesFig. 6, a top view of the lasting devices, showing the s1delasting jawsand heel and toe lasting jaws closed about the last; Fig. 7,

a detail of the rotating ratchet-wheel to intermittingly operate themain shaft of the machine; Fig. 8, a detail of an upper-holding dog anda yielding spring to permit the dog to release the upper at the propertime. Fig. 9 represents a modified form of side and shank lastingdevices, it showing a series of adjustable fingers to crowd the upperover the last at the side and at the shank; and Fig. 10, a detail of thelower end of the rod to which the last-holdin g pin-is pivoted.

The main shaft a, mounted in the frame I), of any suitable construction,has an attached arm, 0, provided with a pawl, d, which is acted upon todrive the shaft to at the proper times by a shoulder, 70 of aratchet-wheel, f, placed loosely upon the shaft, but driven at all timespositively by a pinion, g, on a shaft, h, provided with a fast and loosepulley of ordinary construction. This pawl is disengaged at eachrevolution of the shaft a by means of a pawllifter, t, that, strikingthe short end of the pawl, moves it out of engagement from notch 70, andagainst the pressure of the spring 6 This pawl-lifter i is attached to arod, j extended through a bearing, j, the rod being connected by a link,with a shipper, j, the latter and the link being shown in dotted lines,Fig. 1. A spring, j moves the rod j toward the wheel f.

The pawl-lifter may, when desired, be moved laterally from contact withthe pawl, and then. the pawl will rise under the action of the spring iand the wheel will again engage it and move the shaft.

The shaft a has two disks, 1,- but they might be cranks or eccentrics,connected by links on with rods n, attached at their upper ends with theopposite ends of a walking-beam, 0, provided at or near its center withadjustable boxes 1), containing the pivots o of pressers or downholds qq, having within them, as therein shown, sliding rods 1 s, which, attheir lower ends, carry a sole-plate, t.

The rods 1 s are held within the pressers q q with sufficient frictionto prevent them from descending unless moved positively.

The lower ends of the rods extend sufficiently far through holes in thesole-plate to permit the inner sole to be impaled upon the ends 19 20 ofsuch 'rods, they constituting pins to hold the inner sole.

It is obvious that the inner-sole-holding pins might be made as part ofand so as to project from the under side of the sole-plate. When aninner sole is placed upon these pins the sole-plate is drawn down byhand until the ends of the rods enter holes 2 3 in, preferably,metallicf centering-blocks set in the lastbottom 00. (See Figs. 5 and6.) The pins e11- tering such holes correctly place the inner sole uponthe last, and hold it there until after the devices that push the upperoverthe inner sole pass a little way over the edge of such inner sole.The block 3 is herein shown prolonged through the last, where it isprovided with a hole to receive the last-pin d pivoted upon asupporting-rod, 0, having its pivot at The lower end of this rod,slotted to recieve the pivot f rests upon an india-rubber or otherspring, f (see Fig. 10,) to permit the rod to descend a sufficientdistance to insure the descent of the inner sole and last far enough topermit the lasting devices to pass over the edge of the inner sole.Inner soles vary in thickness, and this spring f 2 compensates for thisvariation. 7

The rod 6 has its pivot in a hanger, g, connected with a rotating head,h, pivoted on a vertical pivot, t, in this instance made hollow for thepassage of one of the rods a. This head. carries at each end lastingdevices of usual construction, to crowd the upper at the sides and shankand heel and toe of the shoe over upon the inner sole.

In Figs. 1 and 2 the jaws j are pivoted at 70 and connected at theirlower ends by a toggle-lever, 1, having an elongated connecting-pin, 11.

The jaws j in Fig. 1 are provided with curved plates a ca to perform theside and shank lasting. Instead of these plates the jaws may be providedwith a series of adjustable fingers, .72 as shown in Fig. 9, and fullydescribed in another application made by me and filed concurrently withthis, to which reference may be had. These fingers 00 will preferably beused. They are slotted, and bear upon the upper to crowd it over theedge of the inner sole. They are made adjustable vertically andhorizontally, to adapt them to the varying curvature of the sole andlast-bottom.

The toe and heel lasting devices are represented at 0 cl. They arecomposed each of two blades, one overlapping the other, and carried bypivoted arms. Each arm has a friction-roller, 4, which is struck by theupper ends of the jaws when they are closed. The side jaws in closingmove the toe and heel lasting jaws to crimp the heel and toe of theupper over the last.

The toe-lastin g 'aws are pivotedat (1 upon a rest-plate, c, adjustablyconnected with the base f by means of a screw, 9 and this base is madeadjustable horizontally by means of a screw, a.

The heel-lasting jaws, pivoted at 7L4 upon a rest -plate, i, areadjustably connected by screws ktwith the base j, made adjustable on theframe h by means of suitable bolts 1) and screws 0 The adjustments ofthe heel and toe lasting jaws horizontally permit them to operate uponlasts of different length, and the adjustment between the rest-platesand their bases permits the jaws to adapt themselves to lasts ofdifferent curvature.

The block a is adj ustably, connected by screw l4=with an adjustablecollar, 17, adapted to be raised or lowered by a screw, 15, in a part,16, of the frame. This block a is so made adjustable that it may placethe pivot p of the plate 0 in proper position with reference to thelasting devices. This plate 0 has upper-holding devices 5 6 7, made aslevers or dogs, controlled by screws 8 or eccentrics or toggles, so asto engage the upper between their forked outer ends and the plate 0, andhold the upper at the toe and ball part of the vamp firmly, while thelast is operated upon by the pressers at points each side of aline drawntransversely across the last, said pressers acting, the one, q, as afore-part presser or downhold, it operating upon the last or inner soleat or near the toe thereof, and the one, q, as a back-part presser, itoperating upon the last or inner sole at or near the heel ends thereof.These upper-holding devices are adapted to hold the upper with a certainamount of force, and then to yield and release the upper. In' thisinstance the screws rest against springpressed plates 18, held up bysprings 1.9. (See Fig. 8.) The dogs are made adjustable horizontally intheir brackets 24. by means of elongated slots therein. (See Fig.1.)This permits the dogs to be moved forward over the upper laid upon theplate 0, which is handier than to draw the upper under the ends of thedogs.

It'is obvious that the standards 24 might be made adjustable on theplates instead of moving the dogs in the slots of the standards.

The toe-seat of the toe-lasting device is lined with india-rubbcr, as at21, to permit the last to descend the proper distance, notwithstandin gvariations in the thickness of the uppers. The ratchet e, fixed to theside of the wheel f, if engaged with the long end of the pawl d, may bemade to move the shaft to when its motion is to be reversed to turn themachine back.

In operation, the upper is grasped or seized by the upper-holdin gdevices; the last is placed within the upper; the sole-plate, with aninner sole applied, is drawn down until the ends of the rods enter theholes in the blocks 2 3. In this position the toe of the last is aheadof the position it will occupy at the completion of the lastingoperation, and the pressers q q are substantially vertical.

Now the machine is started. The walkingbeam 0 descends until the ends ofthe pressers or down-holders q q meet the sole-plate, and then thefarther descent of the walking-beam and presser crowd the last down intothe up perheld by the dogs. The pressers q q are independentlyadjustable laterally by means of the bolts m and vertically adjustableby moving the end portions 20 along the screwportion 1", which permitsboth the toe and heel or fore and back part of the last-bottom to bepressed to the proper level with relation to the movement of and holdsuch last in correct position for the operation of the jaws or fingers,which crowd, fit, or stretch the upper about the last and inner sole. Asthe last is pressed down it is crowded backward by its action againstthe upper, held by the upper-holding devices. The pressers turn on thepivots a; during this backward movement of the last and assume aninclined position. When the upper has been strained sutficiently to fitit closely to the last, the side and heel and toe lasting devices aremade to approach the last and press the upper just over the edge of theinner sole. At this time, or later, the dogs may release the upper,according to the amount of strain to which it is desired to subject thematerial, this being governed by the quality of the material, itsthickness, and the closeness of the lasting. Just as the lasting devicespass over the edge of the last, the sole-plate and pressers are raisedfrom contact with the inner sole by the rising of the walking-beam, andthen the lasting devices are completely closed.

The jaws j are closed by the action of a forked slide, m, lifted by acam, a, on shaft to, the fork of the slide engaging the pin 11, andstraightening the toggle I. When the solepressers are lifted and thejawsare closed, the rotation of the shaft is stopped by the paw lifter Thebolt 4, connected with the lever s, is then withdrawn, unlocking thehead h, so that it may be rotated to bring its opposite end in positionunder the walking-beam and sole-presser to receive another upper. Theend of the head containing the jaws that hold the shoe-upper and innersole just operated upon is, by the rotation of the head, brought to theopposite side of the pivot 45, or into the position shown in Fig. 2.

Referring to Fig. 2, it will be seen that the pin 11 of the toggle-jointstops under the hook 1'0, connectedwith the treadle 12, and held up by aspring, 22. A second operator at this end of the head secures the upperand inner sole by suitable fastenings, nails, or pegs, and thendepresses the lever, causing the hook 10 to spring the toggle and permitthe jaws to move away from the upper, so that the last may be removedand be withdrawn from the lasted shoe.

In this way one operator may fit the upper to the last, and then rotatethe head for another operator to secure the upper and inner soletogether and withdraw the last, leaving the jaws ready to again receivean upper and last within them. The upper is drawn about the toe veryclosely, the slight backward motion of the last away from the dog 5assisting in this operation. The dogs will preferably release the upperjust as the lasting devices begin to crowd the upper over the innersole.

The toe and heel lasting devices are made longitudinally adjustable, toadapt them to lasts of different lengths, and in the arc of a circle, toadapt them to lasts of varying slope at heel and toe, substantially asin the American lasting-machine. The side jaws may be provided withindia-rubber faces, as in the American lasting-machine.

Considerable pressure has to be exerted to properly crowd the last intothe upper held by the upper-holdin g devices; and it is quite essentialto the complete and perfect operation of the machine that each end ofthe walkin beam be operated positively, so as to place the last inproper position for the passage of the jaws or fingers over the last andinner sole. If the head should spring, the last-bottom would not beplaced in correct position.

A walking-beam raised and lowered at one end only might be used but itwould have to be made heavier than it operated at both ends, which wouldunnecessarily increase the weight of the beam and the power required tooperate the machine.

The fore and back part pressers may operate directly upon the inner soleresting upon the last to place it in correct position, as described, andthe sole-plate may be omitted.

The pressers move vertically toward and from the last-bottom, and pressit at each end down upon the support for the last, the pressers andsupport co-operating to place the lastbottom, whatever may be itscurvature, in proper relation with reference to the path of movement ofthe lasting devices.

It is obvious that the pressers would operate to place the last-bottomat a proper level in a machine in which the last was stationary and thelasting jaws or devices which operated upon the upper to fit it to thelast had a rising and falling motion.

From the above description it will be ob- -served, at the commencementof the lasting operation, that the last-bottom occupies a position abovethe horizontal plane of movement of the side-lastin g devices; that theup per is grasped and held at its edges by upperholding devices placedsubstantially at the level of or just above the line of the hOllZOlltalor closing-in movement of the side-lastin g devices; and that the lastand side-lasting devices are then so moved, one with relation to theother, vertically as to place the bottom of the last and inner solethereon in a plane below the acting portions of the side-lastingdevices, after which the said side-lasting devices are moved toward thecenter of and horizontally over the bottom of the last and inner sole,crowding the edges of the upper over upon the inner sole, the heel andtoe lasting devices also crimping the heel and toe of the upper overupon the heel and toe ends of the inner sole.

I claim- 1. In a lasting-machine, upper-holding devices to engage andhold the edge of the upper, combined with side-lastin g devices, a last,and mechanism whereby the relative positions of the last-bottom andside-lasting devices are changed vertically while the upper is held byupper-engaging devices, to permit the sidelasting devices to lay theedges of the upper over upon the inner sole, substantially as described.Y

2. In a lasting-machine, upper-holding devices adapted to grasp theedges of the upper and to yield when subjected to a certain amount ofstrain, combined with a last and side-lasting devices and heel and toelasting plates or slides adapted to be moved horizontally over thelast-bottom substantially as described.

3. In a lasting'machine, upper-holdingdevices controlled as to theirforce by means of a spring, and adapted to engage and hold the edges ofthe upper and to yield at the proper time, combined witha last,side-lasting devices, and mechanism to change the relative position ofthe last-bottom and side-lastin g devices during the lasting operationand while the upper-engaging devices hold the upper, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES W. GLIDDEN. NV i tn esses:

G. W. GREGORY, S. B. KIDDER.

